Speaker
Maíra Dutra
(NASA Goddard)
Description
MeV gamma-ray astronomy will be soon revolutionized by the advent of new telescopes such as COSI, GECCO, and AMEGO-X. In this talk, I will discuss how these telescopes would probe the nature of dark matter (DM) within and beyond the WIMP paradigm. Light DM particles, with masses in the keV-GeV range, would generate gamma rays in the bandpasses of COSI, GECCO, and AMEGO-X through their decay or annihilation into photons, charged leptons, and light mesons such as pions. We consider the phenomenology of light DM in different models involving a new U(1) symmetry, which is common to many well-motivated extensions of the Standard Model of particle physics.
Primary author
Maíra Dutra
(NASA Goddard)
Co-author
Dr
Tonia Venters
(NASA Goddard)
